You are bidding on a brand new lens mount adapter manufactured by DVDTechnik. This adapter is made by BRONZE with chrome coating. With this adapter you can use all Contax/Yashica lenses on any Canon digital SLR cameras body, like digital Rebel, 300D, EOS 10D, 20D, D60, 1D etc Also fits the Canon EOS film cameras, like EOS 1, 3, 5, 50, 300, 650 etc. Metering through the lens is possible in Av (aperture priority) or in Manual mode. Retains lens ability to focus to infinity, but transmits no functions between body and lens. The operation of the adapter is very simple.